Method of making cushion-tire structures



Jan. 24, 1928. r 1,657,014

- F. R. KLAUS i METHOD OF MAKING CUSHION TIRE STRUCTURES original Filed Decl4, 1922 Patented Jan. 24, 192%.

UNITED STATES 1,657,014 PATENT OFFICE.

Eli-El) R. KLAUB, OF VFAEREN, OHIO, ASSIGNOR- TO THE AMERICAN WELDING AND MANUFACTURING COMlANY, OF WARREN, (ll-HO, A CORPORATION OF'OI-IIO.

METHOD or MAKING CUSZ-IIGNJJJIRE STRUCTURES.

Original application filed December 141, 1922 Serial No. 60734-8.

January 17; 15524.-

in which a tire with an inner recess or channel is secured upon a the base.

An object of this invention is to provide a cushion tire structure comprising annular side sections and a central spacing ring rigidly connected therewith tl'iroughout its peripheraledges to form a relatively strong base to which the legs of an arch shaped cushion tire may be secured.

A further object of this invention isto provide a sectional rinrorbase in which the central spacing ring and the outer base sections have connecting means preventing rela; tive movement eircumt'erentially, radially and laterally, when mounted for use on a wheel.

Another object of the invention is to pro vide a means for holding the spacing ring in place while the base is being appliedto the fixed rim of a wheel, so that no portion or the ring can move radially inwardly and project beyond the inner face of the side sections, thus interferingwith the application of the base to the wheel, which is usually put on with a relatively great pressure in anaxial lll direction, the pressure being sufiicient to slightly expand the base and tension it on the fixed rim out a wheel.

Another object of the invention ,is to pro wide such a spacing ring and connecting;

means that while the base, when it is applied to a wheel is rigidly secured thereto, when the base and tire are demounted Irom the wheel the ring'may be easily removed to permit the reuse of thering and side sec tions with another tire, desired.

Other objects will be apparent from the following desc'iption and annexed drawings in which Figure l is a fragmentary perspective view partly in section showing the side members of the rim and a cushion 2 is a section on line 22, Fig. 1.

' 8 is a fragmentary view of the ends spacing ring.

Fig. a shows a member for holding the ends of the spacing ring.

Referring; to the drawmgs, the tire base is made up of a pair of annular side sectionsl and 2 which are preferably endless rings and are provided with outturned flanges 3 and and peripheral locking grooves 5. for re- Divicled and this application filed Serial No. 686,918.

(reiving the rubber tire 6. The rubber tire is oi the type recessed or channeled as at 7 between the side portions, WlllCh are secured to therim base sections 1 and 2 in a well known I manner, wherem a layer of hard rubber is interlocked with suitable grooves in the base united to the hard rubber.

At their inner edges the sections 1 and 2 are grooved circumferentially at 8to forin ribs 9 to interlock with the complementary members such as ribsll and grooves 12 of the spacing ring 10.

sections and the soft rubber of the tire is The spacing ring 10 is expanded into complete engagement with the annularsidesections 1 and 2 throughout its peripheral edges and preferably is of such a diameter or circumferential dimension that it can be expanded against the side sections so thata stressed relation will exist between the two and yet the inside face of the spacing ring 10 will be substantially flush with the inside faces of the side sections 1 and 2 so that the base may be pressed onto the fixed rim of a wheel in the usual manner.

In the form of the invention disclosed herein, spacing ring 10 is preferably a transversely split ring such as ShOWlllIl Fig. 3,

such ring having the ends thereof beveled.

shouldered or otherwise formed, so that they can be held in place by the retaining member 1 lwhich is correspondingly shaped to engage the ends of the ring expandingit' into place and holding it there. The spacing ring is not interposed bet-ween the side sec tions until after the tire is vulcanized to them and the cores forming the recess orarch in the tire are removed.

By omitting the spacing ring'until alter the tire sect-ions are secured to the base scctions, an.unobstructed'space 1s ')rovided be tween the side sections of the base for the insertion and removal of the core for the recess in the the while base sections.

The retainingmember 1 preferably has the same cross sectional shape as the spacing ring 10, so that, it alsointerlocks with the side sections, and 1t 18 removably secured to the side SGCiDlOZlS by any"su1table means.

such as the countersunk screws 15 which e11- g'age threaded apertures 16 mthe sections 1 and 2.

When the retaining member l l: issecured it is vulcanized tothc in position between the side sections (it the base. it becomes substantially part of the ring 10 and holds the rinr 1t) expanded into engagement with the side sections. so that no partof the inner tace ot the ring and its expanding element projects radially inwardl v to interfere with pressin; the base upon the lixed rim of the wheel.

In addition to holding the ring; expanded to prevent such interference. the retaining member secures the side sections of the base together so that there can be no relative movement of them circumterentially when the base is applied to the lixed rim ot a wheel. liiu'thcrimire. the interlocking grooves on the ring, retaining llltll'ilJPl and adjacent side sections may be formed with a sui'l'icient. taper to insure the accurate positioning laterally oi the ring and side sec tions when the ring is expanded into engagement with the side sections ot the. base. Also, the central portion 1? ol the ringand the adjacent faces 18 ot the side sections may be slightly tapered. it desired. to insure a rigid and accurate engagement betwemi the side sections oi. the rim: substantially throughout their peripheral edges.

It is customary to expand slightly the base when it is, pressed axially onto the fixed rim of a wheel so that the base trictionally engages the rim and becomes tensioned thereon. It will be noticed that when the base is mounted tor use on a wheel. relative n'lorement oi the parts is prevented. Relative eircmnterential movement is prevented. due to the umnection ot the retaining member to the side sections. Relative late al movement prevented. due to the in tel-linking (mgagement ot the ring and the retaining member with the side sections.

It obvious that the ring it] can be chosen o'l. such length that: any desired degree ot stressed relation between the spacing; ring it) and the side sections 1 and can be obtained by c pandine' the ring against said sections. as for example by tightening the retaining member H and. thus tending to separate or force apart the ends ot the ring and thus enlarge and press the ring tightly in position against the peripheral edges of the side sections.

It will also be seen that when the base is removed from the wheel the retaining memhc and the ring are alsily removable and the 'arious parts thereof can be used again tor receii'ing a new tire.

This application is a division oi? my prior application. Serial No. (BONUS. tiled Decenn her 1 1-. 1922. for cushion tire structm'e and method of making same.

ll urthermore. it is to be understood that the particular forms of apparatus shown and described. and the particular procedure set forth. are presented for purposes at explanation and illustration and that various insignia modilitations of said. apparatus and procedure am he made without departing From my invention as defined in the appended claims.

hat I claim is:

l. The method oi tlSrQll'lllllltQ a cu:- hion tire structure which consists in insarrtin r a t ai'isvcrsely split spacing ring between a pair of side sections harirnq an arched rubber tire body secured thereto. inserting an expanding member between the juxtaposed ends oi the spacing member, and operating said expanding mel'nber to turthr torcibly enlarge the ring to stressed interlocking czm'agemcnt with the side sections while securing said expanding member in position.

2. The method ot assembling a cushion tire structure which consists in inter-posing.

a t'ansrersely split: spacing ring between a pair oil: side sections having an arched rubber the body secured thereto. ii'lserting an expanding member between the juntarioscd end portions ot the spacing ring. and operating said expai'ldiug member to lurther torcibly enlarge the ring to stressed inter locking engagement with the side sections.

3. The method ol' assembling a cushion tire structure Which consists in insertin; a zillilt'lll tf rine having substantially true iiir cular seating iaces between a pair of spaced side sections of a base band baring an arched cushion tire body secured thereto. 'ausin r the ring to initiall seat within the side sections i rubstantiall over its entire seating taco, and torcibly expanding said rim: after it i inserted in place between said side sectioils.

i. The method oi assembling a cushion tire structure which consists in insertiiur a spacingring: between a pair ol spaced side sections of a base band having: an arched cushion tire body secured tlun'eto. said ring ha ring sul'istantially true circular term in its initial seating position. and 'l'orcihlr expanding said ring utter it is inserted in place between said side section and interlocking; said rin;- with each of said side sections to prevent relatire rircuinferential movement ot said side secticms.

a). The method ot assembliiur a cushion tire strm-ture which co1r-ists in inserting an expansiblc split ring in seating position between :1 pair ot' spaced annular side sections oi a base band hating an arched cushion tire bod secured. thereto. pia'mitting said rinp to spring into position betwcim the side cetions and to assume substantially true circular torm substantiall v throughout its length. and subsetpiently crowding; said ring into intimate seating" relation with the side Fertions applying :Eorce solely to the ends of the ring.

f. The method of assembling a cushion tire structure which consists in inserting an expans'fble split ring between a pair of spacedannular sidc sections of a base band having an arched cushion tire body secured thereto, inserting a spacing member between the ends of said ring and forcing said spacing member radially outward to forcibly onlarge said spacing ring until all portions of said ring and said spacing member are within the bounding planes of the side sections.

7. The method of asseniblinga cushion tire structure which consists in vulcanizing a tire body to a pair of side sections of a base band, arranging a split ring having seating faces within and between said spaced members substantially in contact throughout its seating face with the side members, and then forcibly enlarging said ring while in seating engagement with said spaced members to substantially space the initial juxtaposed seating faces of the end portion of the ring.

8. The method of assembling a cushion tire structure which consists in inserting an expansible split ring between a pair of spaced annular side sections of a base band having an arched cushion tire body secured theretm permitting said ring to spring into position between the side sections and with its end portions in opposed relation and to seat on said side sections substantially throughout its length, and subsequently applying pressure to the opposed end portions of the ring to crowd said ring into stressed seating relation with the side sections without increasing the circumferential length of the initial mitted to the ends of the ring in the direction of its length.

9. The method of assembling a cushion tire structure which consists in inserting an expan ible split ring between a pair of spaced annular side sections of a base band having an arched cushion tire body secured thereto, inserting a. wedge-shaped expanding member between the ends of said ring, and operating; said expanding member radially outward to crowd said ring into rigid seating relation with the side members.

10. The method of assembling a cushion tire structure which consists in permanently vulcanizing a unitary chambered body of rubber COIIIPOSllTlO'Ii on a pair of spaced annular base sect-ions having annular ring seatin g shoulders formed on their opposed inner edge portions, forming a spacing ring with oppositely disposed seating shoulders adapted to laterally interlock with the annular seating shoulders of the base sections said ring having a localized expanding element adapted to enlarge the ring by being forced radially outward, inserting said spacing ring between said spaced annularbase sections with the seating shoulders of the spacing ring int rlocked with the seating shoulders of the base sections, and forcibly moving the expanding element of the ring radially outseating portion of the ring, the components of the applied force being transward to a position substantially in alignment with the remainder of the ring thereby forcibly enlarging said ring to an internal diameter at least as great as the inner diameter of the base sections without stretching themetal of the ring to provide a completely closed laterally interlocked rigid base for tlie tire of the internal diameter of the base sect-ions.

11. The method of assembling a cushion tire structure which consists in pcrnian-ein'lv ulcanizing a unitary chambered body of rubber composition on a: pair of spaced an nular base sections having annular seating shoulders formed on their opposed inner edge portions for receiving a spacing ring, inserting between the spaced annular base sections a discontinuous spacing ring having a pair of opposed seating shoulders adapted to interlock with the corresponding seating shoulders of the base sections, said ring em bodying a localized expanding element adapted to enlarge the ringby being forced radially outward, forcibly moving the expanding element of thelring radially outward to a position substantially in circumferential alignment with the remainder of the ring to thereby forcibly enlarge said ring to an internal diameter at least as greatas the internal diameter of the base sections, and to force the seating shoulders of the spacing ring into stressed interlocking engagement with the seating shoulders of said base sections without stretching the metal of the ring to thereby provide a completely closed rigid base for the tire structure of the internal diameter of the base sections.

12. The method of assembling a cushion tire structure which consists in permanently vulcanizing a unitary chambered body of' rubber composition on a pair of spaced annular base sections having annular ring seating shoulders formed on their opposed inner edge portipns, forming a spacing ring with oppositely disposed seatingshoulders adapted to laterally interlock with the annular seating shoulders of the base sections. said ring beingcooperatively arranged with an 7 expanding element adapted to enlarge the ring by being forced radially outward, inserting said spacing ring between said spaced annular base sections with the seating shout ders 0f the spacing ring interlocked with the seating shoulders of the base sections. and forcibly moving the expanding elementradially outward to a position substantially in alignment with the ren'iainder of the ring .thereby forcibly enlarging said ring to an internal diameter at least as great as the .inner diameter of the base sections Without 13. The method of assembling a cushion iirc strluzluru which cuur isis in perumuently 'ulranizing a unitary chambered body of rubber rmnposition on a pair of sapaconl annular base serlinna having annular seating shoulders lurmcal on their opposed inner (alga lml'iifills fur receiving a spacing ring, inr-ll'iill fi liriu'ucn the spaced annular lame SQPlIiUIlFA a discontinuous Spacing ring; having a pair ui uppusiul sai'ing shoulders aflapteil m inturluck with the rorrcspmuling seating -'lmull r,-= of tho liasv sections, said ring being cuopvral vvly arrange ii with an 3X1)%\I]il iug' clcumnt a lapi0d to enlarge the ring by lining Formal radially outward, forcibly moving il'ie expanding virulent rzuliaily outuzml tn :1 iumiiirm billiHlHilliEliiV iu rim-unrl'vi't'nlial alignment with. iiw rrmuiuilrr Hi the ring In tlurioiiy fnri-iiai r vuiargi: Willi ring 1'0 an internal iiuuirlm at lmw :au l rmu as 1110 internal di'rmu irr of H10 lumaml in Force luv mulling Hiltililiiifl'r (if lia spacing ring: inlu HlI'PFFLli iuivi-luriqiug ungrag'miuml' with l'lw smiling simuliliw ui HTiili lmso aucriuns u'ii'huul sirrtriaiu j iluuwta] of flu ring: to ilirrvliy prm'iiiv a ('(uuplmiriy ('lusml i'ig iii 1mm iur {hr lirv .--iru -Euri- Iii H10 irirruai i ai wl'vr 0i iii larv iuliu. 

